MATH 141 Lecture 8: Statistics 10/4/2016 to 10/6/2016

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Statistics
10/4/2016 – 10/6/2016
10/4/2016
Counting rules
 Addition Rule
o If the trip can be completely finished in “K” different ways then we need to add
all of the choices together from those “K” ways. That’s all of your possible
choices to get your trip done.
 Multiplication rule (stops during trip)
o If the trip has “M” stops, i.e. only after visiting all of the “M” stops you can finish
the trip once, then the product of all choices in those “M” stops is number of
your possible choices to get your trip done.
10/06/2016
Factorial
 The factorial of N
o N! =